CN207436305U - It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly - Google Patents
It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly Download PDFInfo
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- CN207436305U CN207436305U CN201721250606.6U CN201721250606U CN207436305U CN 207436305 U CN207436305 U CN 207436305U CN 201721250606 U CN201721250606 U CN 201721250606U CN 207436305 U CN207436305 U CN 207436305U
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Abstract
The utility model is related to a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, to perceive the vibrational state of shear wall and the vibrational energy that dissipates, including replaceable section and the non-energy dissipating section that is arranged at shear wall wall limb, replaceable section of both ends are fixedly connected respectively with non-energy dissipating section, described replaceable section includes observation circuit, two pieces of shape steel plates and the eddy current damper being arranged on inside two pieces of shape steel plates, the observation circuit and is connected with eddy current damper.Compared with prior art, the utility model has many advantages, such as to perceive certainly, adapts to different oscillation intensities, is good, replaceable without friction durability.
Description
Technical field
The utility model is related to civil engineering structure antidetonation and monitoring field, more particularly, to a kind of from perception Eddy Current Type
Replaceable energy consumption coupling beam.
Background technology
Coupled Shear Wall structure is one of widely used Lateral Resistant System of current skyscraper.In setting for Coupled Shear Wall
In meter, the first line of defence of the coupling beam as its antidetonation system, in the case where experience surmounts the geological process of fortification intensity, often by tight
The shearing-type of weight destroys, and is created great difficulties to being repaired after shake.In field of civil engineering, for structure control and monitor calibrated
The LVDT of true sensor such as is only used under low frequency reaction condition, expensive.And some at low cost but accuracys are poor
Sensor such as accelerometer only by Kalman filter processing could obtain accurate displacement and speed data.At present
The replaceable energy consumption coupling beam of research and development is just to start to consume energy under middle shake and big shake mostly, and elasticity is kept in small shake and wind shake,
The requirement of high-rise and super-high building structure comfort level can not be met.And the response monitoring needs of existing replaceable coupling beam are by cloth
Additional sensing device is put to be observed.Most of replaceable coupling beams are consumed energy by replaceable section of metal yield or lead-rubber
Damper consumes energy, and properties of lead-core rubber damper is easily influenced and by environmental factors such as temperature in the presence of abrasion caused by friction.
When the principle of eddy current damper is that conductor mass block is in the magnetic field that vary or is moved in magnetic field, according to
Faraday's electromagnetic induction law generates induced electromotive force in conductor mass block, so as to form current vortex in mass block, generates
Resistance fuel factor consumes vibrational energy.The new magnetic field opposite with magnetic field that current vortex can be formed again, so as to generate and lead
The opposite damping force of the body direction of motion, plays the role of oscillation damping and energy dissipating.
The utility model proposes a kind of from the replaceable energy consumption coupling beam of Eddy Current Type is perceived, will be passed by rational make
System metal energy consumption damper mechanism combines with eddy-current damping mechanism, makes the two advantage complementary, while designs observation circuit, real
The self-monitoring of existing replaceable energy consumption coupling beam, meets the needs of civil engineering structure antidetonation is with monitoring structural health conditions field.One side
Face improves the anti-seismic performance of structure, and the safety of full stage protection main body is replaced, the opposing party with comfortably after being conducive to the shake of coupling beam
Face can monitor the motion state of coupling beam interplanar in the case of without using external sensor, and reduce monitoring cost.
Utility model content
The purpose of this utility model be exactly in order to overcome the problems of the above-mentioned prior art and provide it is a kind of from perceive, it is suitable
Answer different oscillation intensities, without good, the replaceable perception replaceable energy consumption coupling beam of Eddy Current Type certainly of friction durability.
The purpose of this utility model can be achieved through the following technical solutions：
It is a kind of from perceiving the replaceable energy consumption coupling beam of Eddy Current Type, to perceive the vibrational state of shear wall and the vibrational energy that dissipates
Amount, including replaceable section and the non-energy dissipating section that is arranged at shear wall wall limb, replaceable section of both ends respectively with non-energy dissipating Duan Gu
Fixed connection, described replaceable section includes observation circuit, two pieces of shape steel plates and the current vortex being arranged on inside two pieces of shape steel plates
Damper, the observation circuit are connected with eddy current damper.
Preferably, the eddy current damper includes the convex member and female component that mutually plug together.
Preferably, the convex member include with sequentially connected convex bottom plate, two pieces of convex bottom plate connecting plates and in
Between copper coin, described intermediate copper coin one end is arranged between two pieces of convex bottom plate connecting plates, and the other end stretches out the connection of convex bottom plate
Plate forms convex, and the convex bottom plate is bolted to connection with being embedded in the end plate of shaped steel in non-energy dissipating section, and and type
One end of steel plate is fixedly connected.
Preferably, the female component includes sequentially connected concave bottom plate, concave bottom plate connecting plate and sets respectively
Two blocks of constraint steel plates in concave bottom plate connecting plate both sides are put, described constraint steel plate one end is fixed on concave bottom plate connecting plate two
Side, the other end stretch out concave bottom plate connecting plate and form spill, be equipped on the inside of two blocks of constraint steel plates respectively as magnetic field N pole and S poles
Two blocks of permanent magnet plates being oppositely arranged, outside is equipped with electromagnetic shielding plate, the concave bottom plate and is embedded in non-energy dissipating section
The end plate of shaped steel be bolted to connection, and be fixedly connected with the other end of shape steel plate, the intermediate copper coin other end
Between plugging together upper and lower two blocks of permanent magnet plates, and relative motion can occur with permanent magnet plate.
Preferably, gap is equipped between the intermediate copper coin other end and upper and lower two blocks of permanent magnet plates.
Preferably, the observation circuit includes sequentially connected stub, external resistor, signal amplifier and processing
Device, the stub are separately positioned on intermediate copper coin both sides.
Preferably, it is equipped with gap between the stub and intermediate copper coin both sides.
Compared with prior art, the utility model has the following advantages：
First, from perception：The utility model can realize replaceable energy consumption coupling beam by electric current, voltage signal in measuring circuit
Self-monitoring.
2nd, different oscillation intensities are adapted to：It realizes the oscillation damping and energy dissipating under different oscillation intensities, improves skyscraper under wind shake
Comfort level, and can preferably protect Coupled Shear Wall agent structure reduce eaerthquake damage.
3rd, it is good without friction durability：Eddy-current damping is compared to properties of lead-core rubber damper, and active force is not by contacting, no
It is easy to maintain there are abrasion caused by friction.
4th, it is replaceable：Replacement is repaired after being conducive to shake, the eddy current damper and shape steel plate of the utility model pass through bolt
It is connected with non-energy dissipating section, is easy to dismounting and change after shake.
The utility model can be used for high building structure, and the energy consumption under more loading conditions is realized in wind shake, earthquake, and real
The real-time monitoring of existing coupling beam key shear displacemant response, rapid evaluation is replaced with reparation after contributing to shake.
Description of the drawings
Fig. 1 is the main structure diagram of the utility model.
Fig. 2 is the overlooking the structure diagram of the utility model figure.
Fig. 3 is intermediate copper coin and stub and observation circuit schematic diagram.
Fig. 4 is the measuring principle schematic diagram of observation circuit.
Figure label：1st, shape steel plate, 2, eddy current damper, 3, non-energy dissipating section, 4, be embedded in the I-shaped of non-energy dissipating section
The end plate of steel, 5, electromagnetic shielding plate, 6, constraint steel plate, 7, permanent magnet plate, 8, intermediate copper coin, 91, convex bottom plate connecting plate, 92,
Concave bottom plate connecting plate, 10, high-strength bolt, 111, convex bottom plate, 112, concave bottom plate, 12, stub.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
Being designed to provide for the utility model patent is a kind of from the replaceable energy consumption coupling beam of Eddy Current Type is perceived, which leads to
The combination of eddy current damper and metal energy-dissipation damper is crossed, realizes that the safety of full stage protection main body with comfortably, reaches simultaneously
The target of coupling beam self-monitoring in seismic process overcomes existing replaceable energy consumption coupling beam deformability, stability and durability
Poor deficiency, and be easy to repair after big shake and replace.
As shown in Figs. 1-3, the offer of the utility model is a kind of from the replaceable energy consumption coupling beam of current vortex is perceived, it is by non-energy dissipating
Section 3 and replaceable section of composition.Replaceable section is composed in parallel by eddy current damper 2 and two pieces of shape steel plates 1, and two pieces of shape steel plates 1 are right
Claim the outside for being arranged on eddy current damper 2, and with eddy current damper 2 together by with being embedded in the I-shaped of non-energy dissipating section
The end plate 4 of steel be bolted being fixed together.
Eddy current damper 2 sets electromagnetic shielding plate 5 using being arranged symmetrically, in outermost, is followed successively by constraint steel plate inside
6th, permanent magnet plate 7, intermediate copper coin 8 and bottom plate and bottom plate connecting plate.Permanent magnet plate 7 is fixed on constraint steel plate 6, constrains steel
Plate 6 and intermediate copper coin 8 are connected respectively with the non-energy dissipating section 3 in left and right.Constraint steel plate 6 and intermediate copper coin 8 first pass through high-strength bolt 10 and
The bottom plate connecting plate connection on the left side, then be bolted by the end plate 4 of bottom plate and the i shaped steel for being embedded in non-energy dissipating section.
Two blocks of permanent magnet plates 7 are respectively the N poles in magnetic field and S poles, and uniform magnetic field, intermediate 8 both sides side of copper coin are generated near intermediate copper coin 8
Fixed conductor stick 12, both sides stub 12 connect stub 12 and form observation circuit, stub 12 and centre using being connected in series
Copper coin 8 keeps certain distance, weakens shadow of the current vortex induced field to uniform magnetic field at stub 12 of the intermediate generation of copper coin 8
It rings, bed course is provided between intermediate copper coin 8 and permanent magnet plate 7, form gap, prevent from occurring between middle steel plate and permanent magnet plate
Gouging abrasion.
Observation circuit includes stub 12, external resistor, signal amplifier, data logger and processor.
As shown in figure 4, the operation principle of observation circuit is as follows：
The conducting wire of observation circuit conductor introduction stick, setting an outer connecting resistance R in circuit, it is much larger than the electricity of stub
Hinder Rc, forming circuit.In seismic process, shear wall wall limb drives intermediate copper coin to generate relative displacement with permanent magnet plate, fixed
The continuous cutting magnetic induction line of stub on intermediate copper coin.
According to Faraday's electromagnetic induction law：
E=Bl ν
The formula can ask instantaneous value to meet the requirement of vibration monitoring.In the situation that magnetic field intensity B and stub length l are constant
Under, induced electromotive force E and relative velocity ν relations are certain.In the close enough intermediate copper coin of permanent magnet, it can be assumed that through coil
Magnetic field be uniform magnetic field.
According to Kirchhoff's second law：
V in above formulaRFor the output voltage of circuit, RcFor coil resistance, R is circuitous resistance, and V is stub cutting magnetic induction line
The induced electromotive force of generation without considering the influence of inductance, ignores Kelvin effect and eddy-current loss.Remembered by signal amplifier data
Record instrument storage output voltage VR, most afterwards through processor calculate magnetic field and stub relative velocity ν, i.e. vibration velocity.
The principle of eddy current damper is as follows：
When generating relative displacement between intermediate copper coin 8 and permanent magnet plate 7, intermediate 8 continuous cutting magnetic induction line of copper coin is formed
Current vortex generates resistance fuel factor, the energy of continuous dissipation Seismic input.Current vortex is related with vibration velocity ν, the bigger electric whirlpools of ν
Stream is bigger, so eddy current damper belongs to velocity-dependent damper, is hindered with the such as metal energy consumption of displacement relationship type damper
Buddhist nun's device is compared, it can consume energy under all conditions, can also be consumed even if under the smaller vibration condition such as wind shake
Energy.So eddy current damper can either be used for earthquake and the wind dynamic control of structure simultaneously, the presence of other dampers is in turn avoided
Energy consumption initial stiffness the problem of how matching with lateral displacement stiffness of structure.In the smaller situation of shear displacemants such as small shake and wind shake
Under, the energy of vibration input is constantly changed by thermal energy by eddy current damper, ensures the comfort level of structure.In middle shake and greatly
In the case of shake, shape steel plate carries out surrender energy consumption, so as to the safety of protection of full stage main body and comfortable.
The energy dissipating principle of the utility model is as follows：
Under small shake and wind shake, double limb girdles of shear wall move the permanent magnet plate 7 of eddy current damper 2 and intermediate copper coin 8 produces
Raw relative motion, 8 surface of middle steel plate generate vortex flow, and the direction of vortex flow meets right-hand rule.Vortex flow is formed and former magnetic
The opposite new magnetic field of field direction, so as to generate the damping force opposite with 8 direction of motion of intermediate copper coin.The direction of damping force meets a left side
Gimmick is then.The vortex flow that intermediate copper coin 8 generates is dissipated in the form of thermal energy in the medium of surrounding.Under middle shake and big shake, type
Steel plate 1 also begins to consume energy by yield deformation.In the overall process of vibration, 12 generation of conductor side of intermediate copper coin 8 is fixed on
Induced electricity stream is drawn by observation circuit and is formed into a loop, can by external resistor, signal amplifier, data logger and processor
Output voltage is changed into exercise data, the monitoring to replaceable energy consumption coupling beam is realized.
During construction, replaceable section of the utility model can be assembled in advance complete with the i shaped steel that will be embedded in non-energy dissipating section
Into i shaped steel is cast in non-energy dissipating section after positioning；It will can also be cast in non-disappear after i shaped steel positioning in advance
Among energy section, finally by replaceable section of part of mechanical erection.
The utility model can be used in high building structure.The utility model passes through eddy current damper and metal energy consumption resistance
Buddhist nun's device is implemented in combination with realizing full stage energy consumption and more stable anti-seismic performance, protects shear wall wall limb, replaceable section after shake
Damage, which is easy to repair, to be replaced.The crucial response data of coupling beam can be measured by observation circuit, realizes that damping is dual with monitoring
Purpose.
Claims (7)
1. a kind of from perceiving the replaceable energy consumption coupling beam of Eddy Current Type, to perceive the vibrational state of shear wall and the vibrational energy that dissipates
Amount, which is characterized in that including replaceable section and the non-energy dissipating section (3) that is arranged at shear wall wall limb, replaceable section of both ends point
It is not fixedly connected with non-energy dissipating section (3), described replaceable section includes observation circuit, two pieces of shape steel plates (1) and be arranged on two
The internal eddy current damper (2) of block shape steel plate (1), the observation circuit are connected with eddy current damper (2).
It is 2. according to claim 1 a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, which is characterized in that the electricity
Eddy current retarder (2) includes the convex member and female component that mutually plug together.
It is 3. according to claim 2 a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, which is characterized in that described is convex
Shape component include with sequentially connected convex bottom plate (111), two pieces of convex bottom plate connecting plates (91) and centre copper coin (8), it is described
Intermediate copper coin (8) one end be arranged between two pieces of convex bottom plate connecting plates (91), the other end stretch out convex bottom plate connecting plate
(91) convex is formed, the convex bottom plate (111) is consolidated with being embedded in the end plate (4) of the interior shaped steel of non-energy dissipating section (3) by bolt
Fixed connection, and be fixedly connected with one end of shape steel plate (1).
It is 4. according to claim 3 a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, which is characterized in that described is recessed
Shape component includes sequentially connected concave bottom plate (112), concave bottom plate connecting plate (92) and is separately positioned on concave bottom plate company
Two pieces of constraint steel plates (6) of fishplate bar (92) both sides, described constraint steel plate (6) one end is fixed on concave bottom plate connecting plate (92) two
Side, the other end stretch out concave bottom plate connecting plate (92) and form spill, be equipped on the inside of two pieces of constraint steel plates (6) respectively as magnetic field N
Pole and two blocks of permanent magnet plates (7) being oppositely arranged of S poles, outside are equipped with electromagnetic shielding plate (5), the concave bottom plate (112)
The end plate (4) of shaped steel with being embedded in non-energy dissipating section (3) is bolted to connection, and is consolidated with the other end of shape steel plate (1)
Fixed connection, between described intermediate copper coin (8) other end plugs together upper and lower two blocks of permanent magnet plates (7), and can be with permanent magnet plate
(7) relative motion occurs.
It is 5. according to claim 4 a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, which is characterized in that in described
Between between copper coin (8) other end and upper and lower two blocks of permanent magnet plates (7) be equipped with gap.
It is 6. according to claim 4 a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, which is characterized in that the prison
Slowdown monitoring circuit includes sequentially connected stub (12), external resistor, signal amplifier and processor, the stub (12) point
Intermediate copper coin (8) both sides are not arranged on.
It is 7. according to claim 6 a kind of from the perception replaceable energy consumption coupling beam of Eddy Current Type, which is characterized in that described leads
Gap is equipped between body stick (12) and intermediate copper coin (8) both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250606.6U CN207436305U (en) | 2017-09-27 | 2017-09-27 | It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250606.6U CN207436305U (en) | 2017-09-27 | 2017-09-27 | It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905400A (en) * | 2017-09-27 | 2018-04-13 | 同济大学 | It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly |
| CN112144682A (en) * | 2020-09-02 | 2020-12-29 | 大连理工大学 | Self-sensing friction damper |
-
2017
- 2017-09-27 CN CN201721250606.6U patent/CN207436305U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905400A (en) * | 2017-09-27 | 2018-04-13 | 同济大学 | It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly |
| CN112144682A (en) * | 2020-09-02 | 2020-12-29 | 大连理工大学 | Self-sensing friction damper |
| CN112144682B (en) * | 2020-09-02 | 2021-08-06 | 大连理工大学 | Self-sensing friction damper |
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